27889149 has 16 divisors (see below), whose sum is σ = 37820160. Its totient is φ = 18278400.

The previous prime is 27889111. The next prime is 27889151. The reversal of 27889149 is 94198872.

It is not a de Polignac number, because 27889149 - 2¹⁶ = 27823613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27889098 and 27889107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27889249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69349 + ... + 69749.

It is an arithmetic number, because the mean of its divisors is an integer number (2363760).

Almost surely, 2^27889149 is an apocalyptic number.

It is an amenable number.

27889149 is a deficient number, since it is larger than the sum of its proper divisors (9931011).

27889149 is a wasteful number, since it uses less digits than its factorization.

27889149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 290304, while the sum is 48.

The square root of 27889149 is about 5281.0177996292. The cubic root of 27889149 is about 303.2576422932.

The spelling of 27889149 in words is "twenty-seven million, eight hundred eighty-nine thousand, one hundred forty-nine".